TY - JOUR
T1 - Heat conduction in deformable Frenkel-Kontorova lattices
T2 - Thermal conductivity and negative differential thermal resistance
AU - Ai, Bao Quan
AU - Hu, Bambi
N1 - We would like to thank members of the Centre for Nonlinear Studies for useful discussions. This work was supported in part by Hong Kong Research Grants Council (RGC), the Hong Kong Baptist University Faculty Research Grant (FRG), the National Natural Science Foundation of China (Grant No. 30600122), and Guangdong Provincial Natural Science Foundation (Grant No. 06025073).
Publisher copyright:
© 2011 American Physical Society
PY - 2011/1/31
Y1 - 2011/1/31
N2 - Heat conduction through the Frenkel-Kontorova lattices is numerically investigated in the presence of a deformable substrate potential. It is found that the deformation of the substrate potential has a strong influence on heat conduction. The thermal conductivity as a function of the shape parameter is nonmonotonic. The deformation can enhance thermal conductivity greatly, and there exists an optimal deformable value at which thermal conductivity takes its maximum. Remarkably, we also find that the deformation can facilitate the appearance of the negative differential thermal resistance.
AB - Heat conduction through the Frenkel-Kontorova lattices is numerically investigated in the presence of a deformable substrate potential. It is found that the deformation of the substrate potential has a strong influence on heat conduction. The thermal conductivity as a function of the shape parameter is nonmonotonic. The deformation can enhance thermal conductivity greatly, and there exists an optimal deformable value at which thermal conductivity takes its maximum. Remarkably, we also find that the deformation can facilitate the appearance of the negative differential thermal resistance.
UR - http://www.scopus.com/inward/record.url?scp=79951714194&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.83.011131
DO - 10.1103/PhysRevE.83.011131
M3 - Journal article
AN - SCOPUS:79951714194
SN - 1539-3755
VL - 83
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 1
M1 - 011131
ER -
